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Data sheet:

RS232 charge data buffer

  • RS232 charge data buffer

Charge administration on the PC


General information:

  • Temporary storage of call and charge data.
  • Controlled data transfer to PC
    • Start sequence
    • Stop sequence
    • Filling level monitoring
  • Automatic data transfer via modem by means of integrated modem control functions (only #88410).

Background information:

There is charge data available for every call made through a telephone system, This data can be issued directly at the RS232 interface of the telephone system. Until now, it was necessary to have a PC running a data reception program constantly connected to the telephone system in order to receive such data, due to the fact that most telephony installation do not include a buffer with a sufficient capacity. The serial buffer for telephone systems records all call data until the information is retrieved from the PC. In the meantime, the PC can be switched off or used for other purposes. To bridge power failures, the buffer can be powered directly from the telephone system or via UPS, as its electricity consumption is very low. To retrieve the data from the buffer to the PC, we provide a specially designed compact tool, which generates text or Excel files. Alternatively, you can integrate the 3-byte query sequence directly into your charge accounting software.

Technical data

  • Capacity:
    • 256 KB or 4 MB
  • Baud rate:
    • 50..115,200 baud
  • Data throughput:
    • max. 38400 Bis/s total
    • from incoming and outgoing channel
  • Data format:
    • 7,8 data bits, no,even,odd parity
  • Flow control:
    • Hardware handshake or
    • XON/XOFF protocol
  • Code conversion:
    • Individual code conversion per
    • EPROM patch in both directions
  • Power supply:
    • supplied power adapter
  • Current consumption:
    • approx. 100 mA
  • Buffer input:
    • 25-pin SUB-D socket integrated into buffer housing, DTE assignment
  • Buffer output:
    • 9-pin SUB-D socket, including 2m cable, ready to plug to PC
  • Housing:
    • Plastic housing, 124x74x21 mm
  • Weight:
    • approx. 500g incl. power adapter
  • Scope of delivery:
    • 1x RS232 serial buffer
    • 1 x mini gender changer, #11570
    • 1x power adapter for application in office